For whatever reason, large numbers of investors will never free their minds and allow the rest to follow. Unfortunately, for many, buying, selling and shorting stocks begins and ends with a so-shallow assessment of valuation. The word that every MBA and Finance program in America needs to re-situate in "updated" versions of old, stale business textbooks.

Of course they don't. That would be inconsistent with the knee-jerk reactions so many of us make in other areas of our lives.

It might be the number one problem in investing: Human emotion doesn't pick and choose. It pervades across life's activities. This includes investing. Only the strong survive; traders and investors who set preconceived notions aside and fight back against powerful psychological forces such as confirmation bias and cognitive dissonance.

Cramer closes with:

The stock's not cheap, but no quality growth story is. ... this is a darned good story and it deserves to go higher, as it did, once the more informed buyers took over from the weak hands and the ill-informed.

Just like Amazon.com (AMZN) . Weak hands sometimes take the stock down post-earnings. The dust settles. And here we are, AMZN holding relatively strong above $250 during uncertain times.

LULU fought back hard several times from the $60s. Now, watch it power back, complete with the standard fits and starts, to its 52-week high of $81.09.

If you're not a believer, reflect on your attitude toward stocks such as AMZN and LULU. That doesn't mean you have to buy these particular names. If you're not comfortable, you're not comfortable. And you should never get yourself into a situation that will keep you up at night.

But, with that said, consider the retail space.

Which factors make up success? Can you find companies other than LULU, AMZN and Apple (AAPL) hitting it harder in areas such as customer loyalty, nailing the target demo's lifestyle, e-commerce, mindshare, marketshare, keeping premium prices (except AMZN there, of course) and selling exclusive products (or in Amazon's case, not-so-exclusive) in unique, compelling and convenient environments?

In uncertain times, these names should be "flight to safety" stocks.

If you can't get on board, just don't short these things. They're the most likely to crush their guidance and unleash a whipping on the shorts.